JPS605014Y2 - Air guide fixing device for air jet looms - Google Patents

Description

[Detailed explanation of the invention] In the air jet loom, as shown in Figure 1,
The airflow from the main nozzle is used to fly through the air guide holes 3 in two rows of air guides located inside the openings of the warp threads 1 to insert the weft.
Perform a beating with the reed.

In this beating process, the two rows of air guides move together with the reed 4, and the weft inserted into the air guide hole 3 escapes from the air guide hole 3 into the warp opening through the notch 6 provided in the upper part of the air guide 2. Further, the air guide 2 moves outside the warp shedding, and the reed 4 performs reed beating.

In this case, the air guide 2 is located below the fabric front 5 as shown by the imaginary line.

Conventionally, the air guide 2 is fixed to a holding member 8 with an adhesive 7 in parallel at a predetermined pitch, and the holding member 8 and the lower frame 4a of the reed 4 are inserted into grooves 10 formed in the longitudinal direction on the upper surface of the race 9.
The race 9 was fastened to the front wall 10a of the race 9 by tightening them together with bolts 11 and being pressed against the rear wall 10b.

However, in the above device, the lower frame 4a of the reed 4 and the holding member 8 of the air guide 2 are tightened together, so when only the reed is replaced, the tightening can be done by loosening the bolt 11. The holding member 8 easily moves within the mounting groove 10 of the lace 9, which makes readjustment of the air guide 2 that guides the jetted air and jetted weft very complicated, significantly reducing work efficiency, and causing some problems. When replacing the air guide 2 that has been damaged due to the cause, the position of the reed 4 will be moved to loosen the tightening bolt 11, and readjustment of the temple, weft thread cutting device, etc. will be required, and the work will be carried out in the same way as when replacing the reed 4. This reduced efficiency.

The present invention eliminates the drawbacks of the conventional device and makes it possible to reliably fix the blocked air guide holding member to the race with a simple structure.

In order to achieve the above object, the present invention forms a reed mounting groove 22 having an inclined surface 22a on the rear wall in the longitudinal direction of the upper surface of the race 21, and connects the reed 23 in the open mounting groove 22 to the reed fixing member 25. The race 21 is fixed by tightening from above, and the race 21 has a front side surface 27, 27b partitioned into a surface extending in the front-rear direction at least on either the upper or lower side and a surface extending vertically continuous with the front-rear surface. At least one of the upper surface or the lower surface and the rear surface of the holding member 31, which has long grooves 28 and 28b shaped in the longitudinal direction of the race, and has a plurality of air guides 29 and at least one auxiliary air injection member 30 arranged side by side to form one block. is in contact with each surface of the length 428, 28b, and is tightened by a tightening bolt 38t38c passed through the holding member 31, and the plurality of holding members 31 are attached to the length 128, 28b in the longitudinal direction thereof. They are constructed so that they are arranged in series and fixed.

Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. FIG. 2 shows a reed mounting groove 22 having an inclined surface 22a on the rear wall in the longitudinal direction of the upper surface of the race 21, and a lower frame 2 of the reed 23.
The tightening bolt 2 is attached to the race 21 with a reed fixing member 25 having an inclined surface on the four side surfaces and the inclined surface 22a side.
6, the reed fixing member 25 is secured to the front wall 22 of the reed mounting groove 22 by the inclined surface 22a of the rear wall.
The lower frame 24 of the reed 23 that is in contact with b is pressed and securely clamped and fixed to the race 21.

Further, in the longitudinal direction of the vertical front side surface 27 of the lace 21, there is formed a long groove 28 with a U-shaped cross section that is open toward the front side of the loom. At least one of 30 pieces are combined and arranged in parallel and fixed with an adhesive.

An air hole 32 provided in the holding member 31 is communicated with an air inlet of the air guide 30 having the auxiliary nozzle, and an auxiliary air injection pipe 35 is connected to the lower end of the air hole 32 via a joint 33, 34. The air guide 30 having the auxiliary nozzle injects auxiliary air into the air guide hole 36 to assist the flight of the weft yarn.

A race 21 is formed by continuously connecting a plurality of blocks in the longitudinal direction.
A screw 39 is provided in the race 21 by fitting into the long groove 28 of the holding member 31 and providing a long hole 31a in which the position can be adjusted in the weft insertion direction, and a tightening bolt 38 is inserted into the long hole 31a. Tighten the long groove 2 of the front side 27 of the race 21.
8, the holding member 31 is fixed separately from the reed 23.

In the embodiment shown in FIG. 4, instead of the vertical front side surface 27 of the lace 21 shown in FIG. A screw 39b is provided in the race 21 by successively fitting a plurality of blocks into a long groove 28b provided in the longitudinal direction of the surface 27b.
A bolt 38 is fastened to the race 21 separately from the reed.

Further, in the embodiment shown in FIG. 5, a T-shaped groove 39c is used instead of the screw 39b provided in the long groove in FIG.
8b - It is tightened and fixed to the race 21 separately from the reed 23 by means of a bolt 38c with a rounded corner inserted into the tooth-shaped groove 39c, a nut 40, and a washer 41.

As described above, by fixing the reed separately to the mounting groove provided in the longitudinal direction of the upper surface of the race, when replacing the wave rejection of the machine, even if only the reed is removed, the air guide can be used as before. Since the holding member does not move, the reed can be easily replaced without the need to readjust the air guide.

In addition, since the air guide block is continuously fixed to the long groove on the front side of the race separately from the reed, when replacing the air guide, the reed will not move even if the air guide holding member is removed. Furthermore, since the auxiliary air injection pipe is directly connected to each holding member of the air guide, the configuration of the air flow path is extremely simple, eliminating the need for the conventional work of centering the air guide or re-adjusting the temple or weft thread cutting device. There is no need to do this, and the work efficiency is greatly improved, and since the mounting hole of the holding member is made into a long hole, the horizontal position of the air guide can be easily adjusted.

In addition, in this invention, the holding member is fastened directly to the race using a bolt that penetrates the holding member, so the air guide can be securely fixed with an extremely simple structure.
It can withstand strong vibrations of the loom and maintains stable weft insertion guide function.

Note that the device of the present invention can be implemented by using a needle-shaped auxiliary nozzle having an injection hole instead of an air guide having an injection hole for injecting auxiliary air.

[Brief explanation of the drawing]

Figure 1 is a side sectional view of a conventional reed and air guide fixing device, Figure 2 is a side sectional view showing the device of the present invention, Figure 3 is a front view of Figure 2, and Figures 4 and 5 are FIG. 7 is a side cross-sectional view showing another embodiment. 21... Race, 22... Reed mounting groove,
23... Reed, 25... Reed fixing member, 2
8, 28b... Long groove, 29, 30...
Air guide, 31...Air guide holding member, 35...Auxiliary air injection pipe.

Claims (1)

[Scope of utility model registration request] In an air jet loom in which a reed 23 and a large number of air guides 29 are arranged in parallel to the lace 21, and the weft is inserted by an air flow injected from a main nozzle and an auxiliary air flow, the longitudinal direction of the upper surface of the lace 21 is A reed mounting groove 22 having an inclined surface 22a is formed in the rear wall, and the reed 23 in the open mounting groove 22 is fixed by tightening the reed fixing member 25 from above, while the front side surface 27.27b of the race 21 is fixed.
Long grooves 28, 28b are formed in the longitudinal direction of the race, which are defined by a surface extending in the front-rear direction and a surface extending in the vertical direction continuous with the front-rear surface in at least one of the upper and lower sides, and a plurality of air guides 29. At least one of the upper surface or the lower surface and the rear surface of the holding member 31 formed into one block by arranging at least one auxiliary air injection member 30 are brought into contact with each surface of the lengths 128 and 28b, and the holding member 31 is The bolt 3 is tightened through the holding member 31.
An air guide fixing device for an air jet loom, characterized in that the air guide fixing device for an air jet loom is fastened to the lace 21 by the lace 21 with a 38 c, and a plurality of holding members 31 are fixed to the long grooves 2B and 28b in a continuous manner in the longitudinal direction of the lace.